| Abbreviation | Definition |
|---|---|
| LDAA | Lancaster and District Angling Association |
| LDAA | Learning Disabilities Association of Alabama |
| LDAA | Learning Disabilities Association of Alberta |
| LDAA | Learning Disabilities Association of Arkansas |
| LDAA | Lincoln and District Angling Association |
| LDAA | Line Dance Association of Australia |
| LDAA | Louisiana District Attorney Association |
| LDAA | Louisiana District Attorneys Association |
| LDAA | Lyme Disease Association of Alberta |
| LDAI | Learning Disabilities Association of Iowa |
| LDAM | Learning Disabilities Association of Mississauga |
| LDAO | Learning Disabilities Association of Oklahoma |
| LDAO | Learning Disabilities Association of Ottawa |
| LDAO | Learning Disability Association of Ontario |
| LDAS | Learning Disabilities Association of Saskatchewan |
| LDAS | Learning Disabilities Association of Sudbury |
| LDCA | Land Drainage Contractors Association |
| LDCA | London and District Construction Association |
| LDDAP | Local Development District Association of Pennsylvania |
| LDFA | Lithgow District Football Association |